NPPES file of Aug 9, 2026

Paul Jan Deutsch, M.D.

Endocrinology, Diabetes & Metabolism Physician · Princeton, NJ

Paul Jan Deutsch, M.D. is an endocrinology, diabetes & metabolism physician with a practice address in Princeton, New Jersey, and NPI 1225262355, issued on May 4, 2009. Check the license (New Jersey 25MA06926700, as entered in NPPES) on the New Jersey State Board of Medical Examiners; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1225262355
Name
Paul Jan Deutsch
Credential
M.D.
Primary taxonomy
Endocrinology, Diabetes & Metabolism Physician 207RE0101X
License number
25MA06926700 NJ
Self-reported in NPPES; status is on the state search
Practice location
50 Maybury Hill RD, Princeton, NJ 08540
Phone
(908) 304-7544
Enumerated
May 4, 2009
Record last updated
May 4, 2009 (not updated in 17 years: call before relying on the address or phone)
Fax
(908) 304-7572
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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8 nearest endocrinology, diabetes & metabolism physician records → All 417 in New Jersey → Look up another NPI →

Verify Paul Jan Deutsch in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersNew Jersey State Board of Medical Examiners
    Search for license 25MA06926700    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the New Jersey license search

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100% fewer Medicare Part D claims than the average endocrinology, diabetes & metabolism physician in 2024

12 Medicare Part D claims, against an average of 2,630 among the 8,223 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.

  1. Paul Deutsch12
  2. Specialty average2,630

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Paul Jan Deutsch among 417 endocrinology, diabetes & metabolism physician records in New Jersey

Paul Jan Deutsch, M.D. is one of 417 endocrinology, diabetes & metabolism physician records with a practice address in New Jersey. 85% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2009, is newer than 58% of them.

  • NPI issued2009 · 58% of these records are older, 37% newer
  • In a Medicare fileYes · 85% of these records are
  • In the CMS Doctors and Clinicians fileNo · 75% of these records are
  • Record last updated2009 · 56% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RE0101X and a New Jersey practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Endocrinology, Diabetes & Metabolism Physician providers in New Jersey

There are 417 endocrinology, diabetes & metabolism physician records in New Jersey.

All 417 in New Jersey → Every provider in Princeton → Endocrinology, Diabetes & Metabolism Physician nationwide →

The 8 endocrinology, diabetes & metabolism physician records with the nearest ZIP codes

  1. Shirley Bembo, M.D.Princeton, NJ 085401023041472
  2. Sherin Elsa Mathews, M.D.Princeton, NJ 085401346656568
  3. Diane Fresca, M.D.Princeton, NJ 085401104084649
  4. Henry Goldstein, MDPrinceton, NJ 085401700946225
  5. Angela Inzerillo, MDPrinceton, NJ 085401346300852
  6. Ansu Joy, MDPrinceton, NJ 085401629278536
  7. Alan Moses, M.D.Princeton, NJ 085401922033067
  8. Cathleen Mullarkey-Desapio, MDPrinceton, NJ 085401225073505

Common questions

What is Paul Jan Deutsch, M.D.'s NPI number?

Paul Jan Deutsch, M.D.'s National Provider Identifier (NPI) is 1225262355, issued on May 4, 2009. An NPI identifies a provider in billing; it is not a license.

Where is Paul Jan Deutsch, M.D. located?

The NPPES record lists a practice address at 50 Maybury Hill RD, Princeton, NJ, 08540. Phone: (908) 304-7544. Providers update this record themselves, so call before visiting.

How can I verify Paul Jan Deutsch, M.D.'s license?

NPPES lists New Jersey license number 25MA06926700, as entered by the provider. Search the New Jersey State Board of Medical Examiners at https://newjersey.mylicense.com/verification/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Paul Jan Deutsch, M.D. prescribe under Medicare Part D?

In 2024, Paul Jan Deutsch, M.D. had 12 Medicare Part D claims; the average among endocrinology, diabetes & metabolism physician prescribers was 2,630. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.